IP Library Granted Patent US 7,717,161
Granted Patent B2
US 7,717,161 · App. 11/205,110 · Granted May 18, 2010

Circulation-type liquid cooling apparatus and electronic device containing same

Assignee: NEC Viewtechnology, Ltd.
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Quick Facts
Patent No.
US 7,717,161
App. No.
11/205,110
Granted
May 18, 2010
Kind
B2
Abstract

A cooling apparatus includes a tank for keeping a coolant liquid therein and having an air layer, a heat receiving element in contact with a heat generating part to receive heat therefrom, a radiator for radiating heat absorbed by a coolant liquid, and a circulating mechanism for circulating the coolant liquid from the heat receiving element through the tank and through the radiator again to the heat receiving element. The tank has a conduit forming area for forming a coolant liquid circulating conduit to pass through a middle position of the tank, and a narrow gap which divides the conduit forming area at the middle position of the tank.

Claims (12)

1. A cooling apparatus comprising:

a tank for keeping a coolant liquid therein and having an air layer;

heat receiving means in contact with a heat generating part for receiving heat therefrom;

radiating means for radiating the heat absorbed by the coolant liquid; and

a circulating mechanism for circulating the coolant liquid from said heat receiving means through said tank and through said radiating means again to said heat receiving means,

wherein said tank includes:

a conduit forming member, disposed inside the tank, for forming a coolant liquid circulating conduit such that said conduit passes a middle position of said tank; and

a narrow gap which divides said conduit forming member at the middle position of said tank.

2. The cooling apparatus according to claim 1 , further comprising cavities on both sides of said conduit forming area about said narrow gap in order to move air in said tank.

3. The cooling apparatus according to claim 1 , wherein said conduit forming area forms said coolant liquid circulating conduit which passes through one side of the surface of said tank, and through the middle position of said tank, to the side of the surface that is opposite to the first side.

4. The cooling apparatus according to claim 1 , wherein the conduit forming member extends into the tank, on both sides of the narrow gap, forming a part of the conduit within.

5. An electronic device equipped with the cooling apparatus according to claim 1 .

Assignments (2)
CHANGE OF NAME Recorded Apr 28, 2015
From: NEC VIEWTECHNOLOGY, LTD.
To: NEC DISPLAY SOLUTIONS, LTD.
Reel/Frame 035509/0782 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 26, 2005
From: UTSUNOMIYA, MOTOYASU
To: NEC VIEWTECHNOLOGY, LTD.
Reel/Frame 017040/0938 →
Priority Claims (1)
JP 2004-238176 · Aug 18, 2004 · national
Continuity (1)
Related Publication 20060037739A1 · Feb 23, 2006